Aggie Parents Shocked to See Unborn Son Flashing "Hook 'em Horns" in Sonogram

During a doctor’s appointment for her 20-week sonogram, mom-to-be Samantha Perkins and her husband were thrilled to see that their baby boy had 10 fingers and toes—it’s what he was doing with them that threw the Austin couple through a loop.

Perkins and her husband, both proud Texas A&M graduates, were shocked when the doctor caught their unborn child making a rival school’s hand sign during the checkup.

"(The tech) asked if we were (University of Texas) Longhorns fans," Perkins told CBS Austin. "My husband and I just looked at each other."

WATCH: Our Favorite Southern College Rivalries

When she showed them the screen, Perkins said all they could do was laugh. It was unmistakable—their son was flashing a UT "Hook 'em Horns" sign.